Dmultiplayer -> Unexpected token u & Cannot read property 'folder' of null


i get to errors and can´t do anything in the menu(so don´t play) - reinstalled the game, the errors keep beeing there.

1st-Error(below the 2nd error):
SyntaxError: Unexpected token u

Could not load mod: dmultiplayer.: TypeError: Cannot read property ‘folder’ of null

Enabled Mods: Game Dev Tycoon Mod API by

I had dmultiplayer installed before, but now not anymore. But the both errors are staying.